Carroll County, Tennessee
14 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
Throughout Carroll County, the 14 monitored ZIP codes show low violation rates and healthy safety scores — a pattern that puts the county well above the state baseline for drinking water quality.
How Carroll County Compares
How Carroll County Compares
Carroll County scores 12 points above the Tennessee state average (69/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Carroll County, Tennessee
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16 (asthma 11.2%, diabetes 15.3%)
Estimated additional annual cost per homeowner: $499, driven primarily by energy_code_gap
Infrastructure: 0.298% avg pipe failure probability
57.3% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $499
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,259 housing units in Carroll County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Carroll County
Remediation costs are relatively manageable for most homeowners in Carroll County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Carroll County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Carroll County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Trezevant Water System | 955 | 14 |
| 2 | Cedar Grove U.d. | 1,492 | 12 |
| 3 | Atwood Water System | 1,311 | 11 |
| 4 | Milan Water Department | 10,932 | 9 |
| 5 | Gibson Company Mun Water District #4 | 3,386 | 9 |
11 total water systems serve Carroll County.
All ZIP Codes in Carroll County
14 ZIP codes tracked in Carroll County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 38258 | Trezevant | 99 | A | 1 | $93K |
| 2 | 38324 | Clarksburg | 99 | A | 0 | — |
| 3 | 38321 | Cedar Grove | 97 | A | 1 | $125K |
| 4 | 38342 | Hollow Rock | 97 | A | 1 | $108K |
| 5 | 38317 | Bruceton | 95 | A | 1 | $114K |
| 6 | 38344 | Huntingdon | 90 | A | 1 | $133K |
| 7 | 38220 | Atwood | 89 | A | 9 | $92K |
| 8 | 38388 | Wildersville | 73 | B | 0 | $173K |
| 9 | 38235 | Mc Lemoresville | 66 | C | 0 | $107K |
| 10 | 38318 | Buena Vista | 66 | C | 0 | $127K |
| 11 | 38348 | Lavinia | 66 | C | 0 | $98K |
| 12 | 38378 | Spring Creek | 66 | C | 0 | — |
| 13 | 38387 | Westport | 66 | C | 0 | $163K |
| 14 | 38390 | Yuma | 66 | C | 0 | $121K |
Recommended Buyer Guides for Carroll County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Lead Paint Test Kits — 57.3% of homes built before 1978
Deep Dive Reports
Detailed analysis for Carroll County, Tennessee
Overview
Carroll County in Tennessee covers 14 ZIP codes with an average Home Safety Score of B (81/100).
6 of 14 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Tennessee water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.